The temporary hardness of water is due to _________ salts of calcium and magnesium

carbonates and hydrogen carbonates

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bicarbonates only

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chloride and bicarbonates

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chlorides and sulphates

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Solution

The correct option is B carbonates and hydrogen carbonates
Temporary hardness is a type of water hardness caused by the presence of dissolved carbonates and bicarbonates of calcium and magnesium cations. The presence of metal cations makes the water hard. It can be removed by boiling of water or addition of lime.

Suggest Corrections

A) Hardness of water	(1) Removed by simple boiling
B) Temporary hardness	(2) Carbonates, chlorides, and sulphates of $C a$ and $M g$
C) Calgon	(3) Bicarbonates, chlorides and sulphates of $C a$ and $M g$
D) Permutit	(4) $N a_{2} A l_{2} S i_{2} O_{8} . x H_{2} O$
	(5) $N a [N a_{4} (P O_{3})_{6}]$